Treating wood.



P. Y. NISHIMURA.

TREATING WOOD.

LPPLIOATIOH nun JULY 11, mos.

Patented May 18,1909.

Inventor: (0 K). Mai- Atty - surface, in a blue flame by blacken it, and then brushing it over with a fade of the deeper layer at the bottom.

UNITED sTA'r as FRANK Y. msnmuaa; or NEW roan; or ATLANTIC ci'rr, NEW JERSEY; LYN, NEW YORK.

Specification of Letters Patent.

P TENT OFFICE.

'ransrme woon.

Patented May 1 8, 1909.

. Application filed July 11, 1005. Serial No. erases.

To all whom it may coywm:

Be it known that I, FRANK Y. NlsniMulm, a subject of the Em eror of J apan, residing in the cit of New ork, county and State 0 New ork, have invented certain new and useful Improvements in Treating Wood, of which the following is a specification.

This invention relates to a process 7 of treating wood, and especially soft woods with straight regular grain such as California. cedar or redwood, and the like, to give it an ornamental appearance, and to the resulting roduct, w ich is especially adapted for use or decorative purposes.

Heretofore various meth (is have been devised and used for treatin wood for the purpose of bringing out in a istinct'm'amier or into relief what maybe called the natural pattern of the grain as it appears at the surface'treated.

My im roved prdeess consists, broadly stated, in rst giving what I call an artificial pattern to the rain by cutting away portions of the sur ace so as to ex ose the grain in accordance with the desi pattern and in .then bringing out the pii ttern more distinctly by further treatment. I take a piece of wood with a smooth, fiat or other shaped surface, preferabl cut parallel or substan tially parallel wit the grain, and cut away or o herwise remove portions of this surface to form hollows or depressions therein, preferably with curved sides and rounded -bottoms and of different depths,-which'depressions cut down through .one and perhaps more of the layers of the harder and more compact fibers of the wood, thus exposing the ed of the layer orlayers around the sides 0- the depressions and possibly the ia ililris irregular surface may then be smoothed by' san papering "or otherwise. Having thus given to the grain of the wood the artificial pattern which "s desired, I then bring out the grain more distinctly by slightly burning the reference, to

stifi brush which will remove the blackened more sharply t e .c

or charred surface from the softer and more porous fibers of the wood, cuttin down somewhat abru tly along and. so defining dlges 'ofthe harder portions, andleaving 1; ese softer ortions to view, of a piece of their natural color while the her er portions willretain the blackened effect. The wood may then be polished or iron a glossy surface by rubbinp it with al cohol orother polishing materia L The ornamental surface produced b the above rocess is very decorative, an the wobd tins prepared is of great value in the manufacture of frames for pictures, lamps, and the like, and for many other pur uses.

The main steps of the process and t 1e resnlting product are illustrated in the accompanying drawing, in which Figure 1, is a ace view, and Fig. 2, an end wood with a smooth plain surface showing the natural pattern of the grain; Fig. 3, isa face view, and Fig. 4, a section on the line 44 of Fig. 3, of the same piece of a wood after the surface has been cut away so as'totern to the grain; and ig. 5, is a fflCBYlBW, and Fig. 6 a section on the line 6-6'of Fig. 5, of the finished 'product after the piece has been finally treated to bring out into distinct relief the the wood.

In this drawin wood composed o alternating layers of relatively hard and compact fibers a a and of softer or more porous fibers b b. The hollows or depressions formed in the surface of the wood to give the artificial pattern to the "rain are shown at c c; and a! a indicate (Figs. 5 and 6) the backened surface of the layers of hard compact fibers as they are in the finished product.

with which I have experimented, Califor-' nia cedar or redwood is best adapted for treatment by my new process and produces the most decorative effects, I do not Wish to limitmyself thereto, since the be used with greater or low e ect for the ornamentation of other woods. It will also be understood that after the surface of the wood has been prepared to give anartificial pattern tothe gram, it can be treated in any own way, instead of by burning and brushing as described, for'the purpose of brin in out into relief the grain of the woo without departing from the spirit of my invention or sacrificin thereof. 7 Such other modifications may made as come within thescope of the a pended claims.

, A? represents a piece of I'OOBSS 08.11 i

the advanta es vs an artificial'pat:

bring out more distinctly the grain of the 2. The process of treating wood, which comprises preparing the surface so as to expose the grain according to the desired artificial pattern, burning the surface thus a pre ared, and then brushing the burned of the wood sur ace.

3. The process of treating California cedar or redwood, which comprises pre aring the surface so as to give an arti cial pattern to the grain and then treating the surface thus prepared to bring out the grain more distinct a 4. The process of t ating California, cedar or redwood, which comprises removing portions of the surface to ex ose the harder and more compact fibers of t e grain according to the artificial pattern desired, burning the surface thus prepared, and then removin the softer and-more porous blackened V oi ions of the burned surface.

5. he process of treating California cedar or redwood, which comprises remov ing portions of the surface so as to cut through and thus expose one or more of the layers of its harder and more compact fibers to give an art ficial pattern of the ain, burning the surface thus repared, an then brushing the burned sur ace'to remove the blackened fibers from the softer and more porous portions of the wood.

prepared and afterward 6. As a new article of manufacture, a wood body comprisin natural layers of different characteristics aving an uneven surface whereb an artificial-contour or attern is given to t 1e natural grain cell and her of the wood exposed therein.

7. As a new article of manufacture, a wood body having its surface cut a ay unevenly so as' to give an artificial con our and pattern to the natural grain cell and fiber of the wood thus exposed and having the exposed edges and surfaces of the grain fiber blackenedby fire. new article, of manufacture, a which has been ornamented by forming an uneven surface thereon by cutting away portions both of its cell d fiber layers so as to,- expose the edges and surfaces thereof in different lanes and thereby give thedesired artificial pattern to said layers 8. As a wood body thus exposed and then treating the surface so preparedto emphasize the iference between the cell and fiber layers of the wood.

9. As a new article of manufacture, California cedar or redwood'which has portions of its surface cut away edges and surfaces of its more compact-fibers in dilferent planes to produce an artificial pattern in the grainthus exposed and has then been tre'ated by burning the surface so f. brushing it to relfriitpve the blackened portions of the softened ers.

so as to expose the In -'witness whereof, I have signed my name in the presence of two witnesses.

FRANK, Y. N I'SHIMURA. Witnesses: I 2

WM. B. WHITNEY,

. CHARLES 'Boolmn. 

